Update and closing 280th online meetup 2026 03 28 with starbucks mobile gift item promotion#554

jongfeel wants to merge 2 commits intomainThinkAboutSoftware/OnlineSelfCodingGroup:mainfrom

535-280th-online-meetup-2026-03-28-with-starbucks-mobile-gift-item-promotionThinkAboutSoftware/OnlineSelfCodingGroup:535-280th-online-meetup-2026-03-28-with-starbucks-mobile-gift-item-promotionCopy head branch name to clipboard